Conveyer-conduit



L. A. GRIFFIN.

CONVEYER CONDUIT.

APPLICATION FILED SEPT- 18, 191B.

Patented June 1,1920.

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IJQIRNE A. GRIFFIN, on EVANSTON, ILLInoIs, ASSIGNOR, 110 AMERICAN STEAMCON'VIEYOIR 6013;330BATIQN, or CHICAGO ILLINOIEL, nconronnrion or NEWYORK.

GON'VEYER-GONDUIT;

Application filed September 18, 1918-, Serial No. 254,543;

To aM'w/wm itmayconccm: 7

Be itknovvn that I, LoRNE A. GRI-rrIN, a citizen of, the United States,residing at Evanston, in thecounty of 600k and State of Illinois, haveinvented certain new' and usefulyImprove-ments in Conveyer-Conduits, ofwhich the; following is a: full, clear, concise and exact description,reference being had to the accompanying drawings, forming; a part ofthisspecification.

This invention relatesto. improvements in conveyer conduits, and isespecially concerned with means for moistening the fine particles ofashes; or dust, as they are being driventhrough conduits forming partofan ash conveyer system,or any other system-in which it is desired toproduce agglomeration of these fine particles of dust, to prevent thedust from escaping from, the tank or receptacle into WhichIthe ashes orother material is discharged from the conveyer conduit. I

The; objects of my present. lnventlon are First, to provide means forthoroughly conduits which will; require a. minimum Second, to: providemeansof the-character described which. may be easily and, quicklyinserted at any desired point in a conveyer conduit.

Third, to, providemeans of the character described in which there are noportions of the sprayingtmeans projecting into the conveyer conduit: to,form obstructions to the material passing through the conduit.

F ourth,.to provide means for thoroughly and completely moistening all;of the dust passing through the conveyer conduit, which comprises but a,single spray nozzle Oi';-]8t, positioned to discharge its spray throughthe Wall. of the conduit, thespraynozzle beingof such constructionas-rto provideahol- 10W conical spray substantially filling the conduitfrom one side totheother so as: to moisten all particles of dust passingtherethrough. i v

Further objects and, adaptabilities Will appearas the descriptionprogresses, reference being had to the accompanying drawings in! which,r

Figure 1 is an end elevation of my improvedmoistening device;

' Specification of Letters Patent.-

Patented June 1'{, 192o.

Fig 2 a longitudinal section th re? .through taken on line 2+-2of Fig 1Fig; 3 is an end elevation partially vtransverse section, showing thespray nozzle 1n posltlon, anda means for'securing it.

in its operativeposition; and i a Fig.- 4 is a longitudinal sectionthrough V the spray nozzle,-vvhichl prefer to employ for my purpose. Y rj Heretofore meanshave been: provided for moistening the dust inashconveyer conduits; and'other similarconveying systems Which comprised aplurality of spray jets arranged about the periphery of the 0011- duit,and arranged in sucha manner as to discharge their-jets across. eachother so as to form a complete screen or spray of Water across theconveyer conduit in order to intercept and moisten all the particles ofdust. These jets, have usually beeneight in number and all substantiallyone-eighth inch cross section operating under; a. head of from-12 to 15feet.

Where spraying devices mentioned type. have been used, the quantity ofwater discharged into theashes hasbeen considerable, and the-Weightj-of' the ashes has been correspondingly increased,',fmaking itnot only diflicult to handlethe ashes on, account of their Weight, butalsocausing difliculty'infcold Weather by reason of the 'fact' that dueto this excessive amount of Water the ashes became frozen into a, solidmass which was difficult to remove from the V receptacles into whichthey iver'e discharged.

By employing a jet capable ofjproducing a,v spray extendingsubstantially, across the conveyer conduit, I enabled} .to, reduce ofthe, above,

the amount of water used j to substantially one-eighth of that which hasheretofore been found necessary, and to, correspondingly reduce theWeightofthe ashesand the difiiculties hereto ore experien ed nacco ofthe excessive amount of Water absorbed by v the. ashes. By reasonofjthe; fact that I employ a nozzle which produces a substantifallyconical spray, the ashes and dust pass through a dense screen of waterspray, and

thorough moistening of the dust is thereby insured. y I r Referring to,the drawings, reference character 5 indicates a short section ofconveyer conduit having the bolting flanges 6 at each end thereof;Atspaced. intervals the wall of the conduit is provided with radiallyextending bosses 7, which are formed integrally with the flanges 6, andare provided with openings 8 for receiving bolts for connecting thisshort section with the flanges on the adjacent ends of the conduitsections forming the conveyer conduit.

' Another boss 9 extends outwardly from the wall ofthe conduit, betweentwo of the bosses 7 as shown in Figs. 1' and 3, and is provided with abore 10, which discharges through the :apex of the conical bore 11,formed in the inner side or wall of the conduit 5. The upper end of theboss 9 is provided with a pair of oppositely extending lugs 12, havingthe slots 13 formed therein.

A cover plate 14 is secured to the outer end of the boss? by means ofthe bolts 15 which extend through suitable holes in the cover late, andthrough the slots 13 of the lugs 12. he cover plate 14: is provided witha central screw-threaded .opening'for receiving the screw-threaded endof the short pipe section 16. L

, Secured to the lower end of the pipe 16 by means of a union is aspray, nozzle indicated as a whole by the reference character "18. Thisspray nozzle comprises an outer member 19, havlng inwardly convergingWalls 20 adjacent the discharge orifice 21.

I Located in the bore of the member 19 is a 'member provided with'aplurality of spiral channels 22, and a central bore 23.

This nozzle produces a conicalspray, which completely transversely fillsthe conveyer conduitjwith a dense spray through which the dust mustpass.

The nozzle 18 islocated' so thatitsdischarge orifice is positioned atsubstantially the apex of the conical bore 11, and so that V the sprayfrom the nozzle is dischargedsubstantially parallel with the walls ofthebore 11,-but not in contact therewith. The 7 Walls of the bore llinay,of course, be given any inclination desired so as to permit the spray tocover as large a section of the condu'it as may be desired.

I WhileI have described the details of the construction of the spraynozzle which I 7 what I claim is:-

prefer to employ, it is to beunderstood that thesedetails form no partof my present invention, and that any nozzle giving a similar sprayof'such a character that it will extend entirely across the conveyerconduit may be employed. V

' It is of course to be understood that my invention is capable of otheradaptations and modifications within the scope of the ap ended claims. jI

aving thus described my invention,

1. The combination a boss extending radially between said flanges, thewall of said section being'probore in said boss.

with a conduit section hav1ng a boltlng flange at each end and videdwith a conical inwardly opening bore,

and said boss being provided with a bore opening into said first namedbore at the apex thereof, of a spray nozzle for producing aconical"spray positioned in the bore in said boss with its discharge end at substantially the apex of said conical bore, and means forholding saidnozzle in said position comprising a cover plate for sealing the boreinsaid boss;

2. The combination with a conduit section having a bossextendingradially from the walls thereof, thewall of said'section beingprovided with a conical inwardly opening bore, and said boss beingprovided-with a boreopening-intosaid first named bore at P theapexthereof, of a spray nozzle for producing a conical spray-positioned inthe bore in said boss with its discharge end at substantially theapexfof said coni'caal bore, and

'means for holding'said nozzle in said position comprising'a cover platefor sealing the 3. The combination with a conduit section having a bossextending from the walls thereof, the wall of said section beingprovided witha conical inwardly opening bore, and said boss beingprovided with a bore opening into said first named bore at the apexthereof, of a spray nozzle for produc-- ing a conical spray positionedin the bore in said boss with its'dischargeend' at substantially theapex of said conical bore, and

means for holding said nozle in said'posit on.

V 4. The combination with a-conduit section vided with a.conicalinwardly opening bore, and said boss. being providedwith a borehaving af boss extending from the walls thereof, the wall of saidsectionbeing pro- 7 ion opening into said first" named bore at "the apexthereof, and a spray nozzle for produ'c ing a conical spray positionedin'the bore in said boss with its discharge end at substantially theapex of said conical bore.v

5. The combination with a conduit section 5 having a conical boreextending through one wall thereofof a nozzle for producing a conicalspray,'the said nozzle being positioned to discharge its spraythrough'said conical bore into said conduit.

6. The combination with a conduit'section having an unthreadedopeningextending through the wall thereof, a closure'plate for the outer end ofsaid opening, means for securing said closure plate to said conduit secfreely into said opening, a nozzle support With Which said nozzle hasthreaded engagement, and means for holding said nozzle support in fixedrelation to said conduit section. v

8. The combination With a conduit section having an unthreaded openingextending through the Wall thereof, a nozzle vprojecting freely intosaid opening and discharging 10 into the conduit,- a support by Whichsaid nozzle is carried, and means for securing said support in fixedrelation to said conduit section.

In Witness whereof, I hereunto subscribe my name this 12th day ofSeptember, A. D. 15

LORNE A. GRIFFIN.

Witnesses:

E. EISNEAR, WM. ZAvIsLAK.

